<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .inner{
            height: 100px;
            margin-top: 10px;
            background: red;
        }
        .wrap{
            background: blue;
            overflow: hidden;
        }
    </style>
</head>
<body>
    <div class="wrap">
        <div class="inner"></div>
    </div>
</body>
</html>